/Engine/Source/Runtime/MovieScene/Public/Evaluation/MovieSceneSequenceHierarchy.h
Add the specified sub sequence data to the hierarchy
void Add ( const [FMovieSceneSubSequenceData](API\Runtime\MovieScene\Evaluation\FMovieSceneSubSequenceData) & Data, FMovieSceneSequenceIDRef ThisSequenceID, FMovieSceneSequenceIDRef ParentID )